* {
	box-sizing: border-box;
}

h3 {
	color: green;
	font-style: italic;
}

#top {
	color: red;
	text-align: center;
}

.joke {
	font-family: Arial;
	color: #0000ff;
	font-size: 24px;
	font-style: italic;

	background-color: azure;
	opacity: .7;
}

section h3 {
	text-align: center;
	font-size: 24px;
}

section {
	width: 50%;
	float: left;
	padding: 10px;
}